Keysight B1505A Configuration and Connection Guide 3-23N1265A Connection GuideOutput ConnectionFigure 3-13 Space around Cable EndUniversal R-Box (N1265A-035)This is a blank box, kind of a do-it-yourself kit for installing a resistor you want. Generally,inserting a resister between SMU and DUT is effective for preventing SMU fromoscillation. You can insert your desired resistor by using this box. This box is designed forusing the MCSMU. See Figure 3-14 for connection example.NOTE To install your desired resistor in the universal R-box, see "To Use Universal R-Box".The Kelvin connection is effective up to the R-box input. So the voltage drop caused by theseries resistor must be subtracted from the measurement result as following.Vdut = Vout - Rs Imeaswhere,Vdut: Voltage after correctionVout: Source output voltageRs: Resistance of the series resistorImeas: Measurement currentFigure 3-14 Series Resistor Connection ExampleTo Use Universal R-BoxTo install your desired resistor, see the following simple instruction.• Required parts:To UHVU High To UHVU LowDUTShieldSignal lineInsulator SHV CableUHV CableInsulator¡32 mm for 10 kV¡100 mm for 10 kVForceGuardForceGuardForceGuardForceGuardForceGuardForceGuardSenseForce SenseForce SenseForce±200 V Max 1 ASMU SMU±200 V Max 2 Adc 40 A PulseForceHighLowHighLowHighLowHighLow±40 V Max 1 A PulseGuardSense±3 kV Max ±3 kV MaxSelector OutputLowHigh1 2K Thermocouple±3 V MaxBias TeeHighLow±10 kV MaxUHV1 2 3GateAttach N1265A-035 R-box.Use N1254A-508/509 wire.Use N1254A-522 wire for High/Low Force.HighLowBase: SMU1 High (MCSMU)Collector: Selector Output High Force and SenseEmitter: Selector Output Low Force and Senseand SMU1 Low (MCSMU)
